Quick Reference

VMAP: RAILROADS

Railroads: Identification Information

The VMap Level 0 is a general purpose global
database designed to support Geographic Information Systems applications.

Abstract:

The Vector Map (VMap) Level 0 database represents
the third edition of the Digital Chart of the World. VMap Level
0 is a comprehensive 1:1,000,000 scale vector of the world. It
consists of cartographic, attribute, and textual data stored on
compact disc read only memory (CD-ROM). The primary source for
the database is the National Imagery and Mapping Agency's (NIMA)
Operational Navigation Chart (ONC) series. This is the largest
scale unclassified map series in existence that provides consistent,
continuous global coverage of essential basemap features. The
data includes major road and rail
networks, major hydrologic drainage systems, major utility
networks (cross-country pipelines and communication lines), all
major airports, elevation contours (1000 foot(ft), with 500ft
and 250ft supplemental contours), coastlines,
international boundaries and populated places.

Access Constraints:

none

Use Constraints:

Cite National Imagery and Mapping Agency

Ordering Instructions:

For armed forces, Department of Defense, and
federal/state government customers only. Must have customer account
number. To provide a general idea of content, a sample data set
is available from the TMPO Home Page.